🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.2 AU - 3.66 AU

Year: 1889 Days

Day: 41.5 Hours

Environment

Temp: -108 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 82,723,041 km

• M1: 1,726,808 km (0.071 R)
• M2: 1,838,857 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.4

Radius: 10.3

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.51 AU - 5.79 AU

Year: 5059 Days

Day: 7.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 82,723,041 km

• M1: 206,295 km (0.083 R)
• M2: 304,880 km (0.057 R)
• M3: 754,123 km (0.052 R)
• M4: 1,230,442 km (0.086 R)
• M5: 1,508,844 km (0.103 R)
• M6: 1,681,929 km (0.105 R)
• M7: 2,029,295 km (0.073 R)
• M8: 2,221,229 km (0.104 R)
• M9: 2,319,515 km (0.067 R)
• M10: 2,581,910 km (0.108 R)
• M11: 2,706,375 km (0.082 R)
• M12: 3,026,066 km (0.091 R)
• M13: 3,426,090 km (0.113 R)
• M14: 3,586,160 km (0.081 R)
• M15: 3,772,260 km (0.032 R)
• M16: 3,890,143 km (0.072 R)
• M17: 3,985,437 km (0.114 R)
• M18: 4,648,604 km (0.078 R)
• M19: 4,800,745 km (0.092 R)
• M20: 4,980,263 km (0.078 R)
• M21: 5,774,777 km (0.112 R)
• M22: 5,938,437 km (0.118 R)
• M23: 6,103,593 km (0.088 R)
• M24: 6,242,570 km (0.057 R)
• M25: 6,495,091 km (0.084 R)
• M26: 7,361,262 km (0.099 R)
• M27: 7,598,525 km (0.07 R)
• M28: 7,868,250 km (0.108 R)
• M29: 8,386,606 km (0.104 R)
• M30: 9,105,424 km (0.073 R)
• M31: 9,200,568 km (0.117 R)
• M32: 9,649,362 km (0.088 R)
• M33: 10,269,744 km (0.076 R)
• M34: 11,173,764 km (0.059 R)
• M35: 11,721,442 km (0.111 R)
• M36: 11,859,670 km (0.112 R)
• M37: 12,453,424 km (0.102 R)
• M38: 12,878,432 km (0.08 R)
• M39: 13,092,656 km (0.111 R)
• M40: 13,344,280 km (0.099 R)
• M41: 13,815,513 km (0.112 R)
• M42: 13,961,670 km (0.094 R)
• M43: 14,625,585 km (0.102 R)
• M44: 15,149,178 km (0.117 R)
• M45: 15,602,759 km (0.099 R)
• M46: 16,022,530 km (0.094 R)
• M47: 16,176,167 km (0.083 R)
• M48: 16,368,849 km (0.094 R)
• M49: 17,186,252 km (0.117 R)
• M50: 17,382,824 km (0.076 R)
• M51: 17,698,924 km (0.096 R)
• M52: 18,457,385 km (0.067 R)
• M53: 18,698,986 km (0.111 R)
• M54: 18,941,783 km (0.108 R)
• M55: 19,226,318 km (0.059 R)
• M56: 19,430,519 km (0.086 R)
• M57: 19,635,319 km (0.11 R)
• M58: 20,503,435 km (0.086 R)
• M59: 20,586,761 km (0.111 R)
• M60: 20,795,600 km (0.116 R)
• M61: 21,553,164 km (0.06 R)
• M62: 21,807,779 km (0.113 R)
• M63: 22,362,787 km (0.096 R)
• M64: 22,663,479 km (0.085 R)
• M65: 22,879,050 km (0.098 R)
• M66: 23,225,518 km (0.119 R)
• M67: 23,486,567 km (0.038 R)
• M68: 25,609,360 km (0.115 R)
• M69: 25,788,878 km (0.105 R)
• M70: 26,511,735 km (0.066 R)
• M71: 26,693,496 km (0.053 R)
• M72: 27,378,804 km (0.05 R)
• M73: 28,162,398 km (0.04 R)
• M74: 29,751,576 km (0.119 R)
• M75: 29,893,245 km (0.099 R)
• M76: 30,224,604 km (0.048 R)
• M77: 30,795,470 km (0.111 R)
• M78: 31,658,350 km (0.103 R)
• M79: 31,851,182 km (0.105 R)

Asteroid Belt

Center: 6.84 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.8

Radius: 11.6

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7 AU - 9.06 AU

Year: 8572 Days

Day: 7.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 82,723,041 km

• M1: 159,771 km (0.096 R)
• M2: 259,104 km (0.083 R)
• M3: 349,610 km (0.117 R)
• M4: 494,870 km (0.108 R)
• M5: 664,065 km (0.095 R)
• M6: 870,660 km (0.074 R)
• M7: 1,427,612 km (0.073 R)
• M8: 1,875,957 km (0.029 R)
• M9: 2,011,942 km (0.111 R)
• M10: 2,819,022 km (0.044 R)
• M11: 3,028,758 km (0.054 R)
• M12: 3,270,808 km (0.097 R)
• M13: 3,976,760 km (0.07 R)
• M14: 4,094,045 km (0.102 R)
• M15: 4,392,493 km (0.078 R)
• M16: 4,791,021 km (0.093 R)
• M17: 5,921,682 km (0.108 R)
• M18: 6,225,366 km (0.057 R)
• M19: 7,346,452 km (0.085 R)
• M20: 7,454,761 km (0.091 R)
• M21: 7,527,166 km (0.115 R)
• M22: 7,746,178 km (0.086 R)
• M23: 7,967,134 km (0.066 R)
• M24: 8,078,435 km (0.097 R)
• M25: 8,680,865 km (0.031 R)
• M26: 9,258,911 km (0.1 R)
• M27: 10,008,995 km (0.095 R)
• M28: 10,411,563 km (0.094 R)
• M29: 10,860,506 km (0.091 R)
• M30: 11,441,245 km (0.076 R)
• M31: 11,567,057 km (0.055 R)
• M32: 12,374,137 km (0.115 R)
• M33: 12,849,709 km (0.053 R)
• M34: 13,375,396 km (0.068 R)
• M35: 13,552,221 km (0.075 R)
• M36: 13,640,932 km (0.092 R)
• M37: 14,042,453 km (0.102 R)
• M38: 14,674,803 km (0.107 R)
• M39: 15,086,347 km (0.079 R)
• M40: 15,224,276 km (0.073 R)
• M41: 15,687,282 km (0.075 R)
• M42: 15,780,481 km (0.081 R)
• M43: 15,920,654 km (0.106 R)
• M44: 17,779,258 km (0.074 R)
• M45: 18,561,505 km (0.102 R)
• M46: 19,957,403 km (0.1 R)
• M47: 20,311,651 km (0.11 R)
• M48: 20,464,091 km (0.111 R)
• M49: 21,438,572 km (0.086 R)
• M50: 22,375,653 km (0.033 R)
• M51: 22,954,896 km (0.087 R)
• M52: 23,966,925 km (0.108 R)
• M53: 24,343,613 km (0.09 R)
• M54: 24,830,554 km (0.113 R)
• M55: 26,699,480 km (0.108 R)
• M56: 28,045,711 km (0.097 R)
• M57: 29,990,633 km (0.093 R)
• M58: 30,164,316 km (0.111 R)
• M59: 30,629,117 km (0.102 R)
• M60: 31,037,818 km (0.082 R)
• M61: 31,330,880 km (0.107 R)
• M62: 31,624,691 km (0.118 R)
• M63: 31,919,548 km (0.086 R)
• M64: 32,156,212 km (0.112 R)
• M65: 32,988,574 km (0.062 R)
• M66: 33,407,598 km (0.052 R)
• M67: 33,527,576 km (0.111 R)
• M68: 34,553,368 km (0.087 R)
• M69: 36,327,150 km (0.066 R)
• M70: 36,450,568 km (0.114 R)
• M71: 39,835,370 km (0.072 R)
• M72: 40,793,395 km (0.054 R)
• M73: 40,985,777 km (0.075 R)
• M74: 41,307,263 km (0.095 R)
• M75: 41,500,693 km (0.092 R)
• M76: 41,694,273 km (0.076 R)
• M77: 42,017,554 km (0.109 R)
• M78: 42,212,031 km (0.031 R)
• M79: 42,341,733 km (0.087 R)
• M80: 43,581,300 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.3

Radius: 14.6

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.57 AU - 10.65 AU

Year: 9518 Days

Day: 6.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 82,723,041 km

• M1: 185,950 km (0.085 R)
• M2: 535,710 km (0.062 R)
• M3: 968,347 km (0.089 R)
• M4: 1,123,031 km (0.113 R)
• M5: 1,436,588 km (0.038 R)
• M6: 1,547,590 km (0.106 R)
• M7: 1,996,982 km (0.051 R)
• M8: 2,380,701 km (0.098 R)
• M9: 2,487,065 km (0.093 R)
• M10: 3,014,696 km (0.079 R)
• M11: 3,949,982 km (0.063 R)
• M12: 4,045,126 km (0.115 R)
• M13: 4,532,516 km (0.117 R)
• M14: 4,665,658 km (0.037 R)
• M15: 4,935,982 km (0.074 R)
• M16: 5,246,397 km (0.12 R)
• M17: 5,706,112 km (0.04 R)
• M18: 5,814,121 km (0.087 R)
• M19: 6,178,990 km (0.085 R)
• M20: 6,289,992 km (0.045 R)
• M21: 6,664,585 km (0.117 R)
• M22: 6,816,577 km (0.104 R)
• M23: 7,633,231 km (0.08 R)
• M24: 8,317,193 km (0.117 R)
• M25: 8,687,148 km (0.082 R)
• M26: 8,811,763 km (0.094 R)
• M27: 10,396,902 km (0.056 R)
• M28: 11,791,753 km (0.108 R)
• M29: 12,959,364 km (0.118 R)
• M30: 13,101,931 km (0.059 R)
• M31: 14,114,709 km (0.104 R)
• M32: 14,507,104 km (0.094 R)
• M33: 15,102,653 km (0.094 R)
• M34: 16,010,862 km (0.085 R)
• M35: 16,626,158 km (0.112 R)
• M36: 17,144,963 km (0.1 R)
• M37: 19,599,116 km (0.083 R)
• M38: 20,257,197 km (0.099 R)
• M39: 20,422,952 km (0.092 R)
• M40: 20,589,155 km (0.119 R)
• M41: 21,426,604 km (0.104 R)
• M42: 22,674,998 km (0.095 R)
• M43: 23,423,735 km (0.071 R)
• M44: 23,830,342 km (0.055 R)
• M45: 24,122,058 km (0.115 R)
• M46: 24,297,836 km (0.119 R)
• M47: 25,718,567 km (0.062 R)
• M48: 26,137,890 km (0.066 R)
• M49: 26,620,044 km (0.064 R)
• M50: 26,741,068 km (0.107 R)
• M51: 28,145,792 km (0.105 R)
• M52: 29,012,562 km (0.117 R)
• M53: 29,137,028 km (0.097 R)
• M54: 30,013,821 km (0.112 R)
• M55: 30,772,282 km (0.041 R)
• M56: 31,281,364 km (0.085 R)
• M57: 31,729,110 km (0.051 R)
• M58: 32,308,054 km (0.057 R)
• M59: 32,695,811 km (0.083 R)
• M60: 33,476,114 km (0.09 R)
• M61: 33,737,611 km (0.118 R)
• M62: 34,262,700 km (0.095 R)
• M63: 34,790,331 km (0.086 R)
• M64: 34,988,848 km (0.102 R)
• M65: 35,787,102 km (0.111 R)
• M66: 36,523,871 km (0.075 R)
• M67: 37,672,633 km (0.099 R)
• M68: 38,148,953 km (0.066 R)
• M69: 38,901,729 km (0.117 R)
• M70: 39,521,214 km (0.086 R)
• M71: 39,797,671 km (0.116 R)
• M72: 41,119,219 km (0.097 R)
• M73: 41,750,372 km (0.109 R)
• M74: 42,172,837 km (0.104 R)
• M75: 42,738,316 km (0.1 R)
• M76: 44,665,586 km (0.111 R)
• M77: 45,169,880 km (0.12 R)
• M78: 46,329,563 km (0.047 R)
• M79: 46,766,987 km (0.072 R)
• M80: 46,986,148 km (0.114 R)
• M81: 48,530,297 km (0.061 R)
• M82: 49,420,105 km (0.072 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656

Radius: 7

Gravity: 13.39 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 15.56 AU - 17.24 AU

Year: 25020 Days

Day: 23.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 82,723,041 km

• M1: 149,299 km (0.117 R)
• M2: 263,143 km (0.119 R)
• M3: 473,028 km (0.079 R)
• M4: 809,175 km (0.097 R)
• M5: 1,365,529 km (0.025 R)
• M6: 1,462,618 km (0.083 R)
• M7: 3,885,356 km (0.073 R)
• M8: 4,595,048 km (0.118 R)
• M9: 4,939,871 km (0.089 R)
• M10: 4,989,837 km (0.082 R)
• M11: 5,140,632 km (0.101 R)
• M12: 5,602,291 km (0.032 R)
• M13: 5,811,728 km (0.098 R)
• M14: 6,455,298 km (0.114 R)
• M15: 7,984,637 km (0.089 R)
• M16: 8,339,034 km (0.107 R)
• M17: 9,063,387 km (0.096 R)
• M18: 9,247,542 km (0.052 R)
• M19: 10,123,737 km (0.104 R)
• M20: 10,251,044 km (0.11 R)
• M21: 10,314,773 km (0.094 R)
• M22: 10,507,156 km (0.047 R)
• M23: 11,025,961 km (0.117 R)
• M24: 11,886,748 km (0.103 R)
• M25: 13,742,509 km (0.067 R)
• M26: 15,393,023 km (0.042 R)
• M27: 15,686,384 km (0.102 R)
• M28: 16,652,637 km (0.059 R)
• M29: 16,802,982 km (0.065 R)
• M30: 16,953,777 km (0.075 R)
• M31: 17,029,474 km (0.118 R)
• M32: 17,868,119 km (0.111 R)
• M33: 19,190,714 km (0.027 R)
• M34: 19,427,378 km (0.063 R)
• M35: 19,903,548 km (0.112 R)
• M36: 19,983,284 km (0.101 R)
• M37: 21,682,416 km (0.103 R)
• M38: 24,359,171 km (0.081 R)
• M39: 25,822,986 km (0.06 R)
• M40: 25,909,902 km (0.109 R)
• M41: 26,346,429 km (0.073 R)
• M42: 27,403,787 km (0.113 R)
• M43: 29,924,361 km (0.101 R)
• M44: 30,382,131 km (0.115 R)
• M45: 31,769,651 km (0.104 R)
• M46: 31,862,850 km (0.034 R)
• M47: 33,083,120 km (0.08 R)
• M48: 33,177,666 km (0.093 R)
• M49: 34,032,169 km (0.053 R)
• M50: 35,279,217 km (0.105 R)
• M51: 36,932,423 km (0.076 R)
• M52: 37,030,559 km (0.082 R)
• M53: 37,128,696 km (0.092 R)
• M54: 39,609,776 km (0.073 R)
• M55: 40,112,275 km (0.05 R)
• M56: 40,213,104 km (0.106 R)
• M57: 40,515,891 km (0.082 R)
• M58: 45,778,594 km (0.053 R)
• M59: 45,989,377 km (0.074 R)
• M60: 46,623,523 km (0.087 R)
• M61: 47,366,875 km (0.045 R)
• M62: 48,328,490 km (0.063 R)
• M63: 50,924,162 km (0.069 R)
• M64: 52,679,544 km (0.085 R)
• M65: 53,343,010 km (0.114 R)
• M66: 54,120,470 km (0.076 R)
• M67: 55,461,915 km (0.036 R)
• M68: 56,814,279 km (0.092 R)
• M69: 57,154,016 km (0.105 R)
• M70: 60,588,933 km (0.112 R)
• M71: 60,820,361 km (0.077 R)
• M72: 60,936,149 km (0.12 R)
• M73: 63,619,636 km (0.112 R)
• M74: 65,627,688 km (0.106 R)
• M75: 65,984,180 km (0.111 R)
• M76: 66,699,108 km (0.09 R)
• M77: 67,177,223 km (0.04 R)
• M78: 67,776,363 km (0.07 R)
• M79: 68,738,875 km (0.045 R)
• M80: 69,100,902 km (0.095 R)
• M81: 69,584,552 km (0.093 R)
• M82: 70,312,346 km (0.105 R)
• M83: 70,677,215 km (0.088 R)
• M84: 71,775,263 km (0.11 R)
• M85: 73,988,564 km (0.114 R)
• M86: 75,850,010 km (0.067 R)
• M87: 76,849,174 km (0.061 R)
• M88: 78,860,218 km (0.082 R)
• M89: 79,112,889 km (0.081 R)
• M90: 79,872,398 km (0.055 R)
• M91: 81,016,073 km (0.112 R)
• M92: 82,165,135 km (0.103 R)
• M93: 82,677,657 km (0.093 R)
• M94: 83,834,497 km (0.097 R)
• M95: 84,350,460 km (0.105 R)
• M96: 86,034,334 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.5

Radius: 6.8

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 14.08 AU - 20.56 AU

Year: 27155 Days

Day: 15.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 82,723,041 km

• M1: 167,250 km (0.102 R)
• M2: 221,405 km (0.101 R)
• M3: 821,442 km (0.117 R)
• M4: 873,502 km (0.117 R)
• M5: 1,329,626 km (0.092 R)
• M6: 1,748,051 km (0.092 R)
• M7: 2,466,121 km (0.095 R)
• M8: 3,223,685 km (0.113 R)
• M9: 3,476,954 km (0.091 R)
• M10: 4,138,176 km (0.106 R)
• M11: 4,553,310 km (0.092 R)
• M12: 4,742,103 km (0.103 R)
• M13: 5,572,969 km (0.108 R)
• M14: 5,825,939 km (0.099 R)
• M15: 6,290,590 km (0.083 R)
• M16: 6,395,459 km (0.098 R)
• M17: 7,811,103 km (0.085 R)
• M18: 8,438,068 km (0.106 R)
• M19: 9,619,143 km (0.102 R)
• M20: 10,044,749 km (0.099 R)
• M21: 11,230,462 km (0.064 R)
• M22: 11,357,919 km (0.055 R)
• M23: 12,001,938 km (0.081 R)
• M24: 13,731,439 km (0.063 R)
• M25: 13,867,573 km (0.097 R)
• M26: 14,210,152 km (0.094 R)
• M27: 15,254,644 km (0.102 R)
• M28: 15,395,715 km (0.102 R)
• M29: 15,679,203 km (0.107 R)
• M30: 15,821,620 km (0.12 R)
• M31: 17,711,789 km (0.117 R)
• M32: 18,083,391 km (0.104 R)
• M33: 19,672,120 km (0.105 R)
• M34: 21,383,819 km (0.074 R)
• M35: 23,142,641 km (0.063 R)
• M36: 23,223,723 km (0.099 R)
• M37: 24,368,296 km (0.12 R)
• M38: 24,781,486 km (0.101 R)
• M39: 25,030,566 km (0.084 R)
• M40: 25,197,069 km (0.117 R)
• M41: 26,967,410 km (0.088 R)
• M42: 27,652,269 km (0.064 R)
• M43: 28,516,346 km (0.031 R)
• M44: 28,951,826 km (0.083 R)
• M45: 30,182,567 km (0.114 R)
• M46: 30,359,841 km (0.103 R)
• M47: 33,241,993 km (0.069 R)
• M48: 34,901,183 km (0.081 R)
• M49: 34,994,233 km (0.099 R)
• M50: 35,647,228 km (0.046 R)
• M51: 36,965,484 km (0.115 R)
• M52: 37,535,303 km (0.063 R)
• M53: 39,358,901 km (0.118 R)
• M54: 40,427,777 km (0.069 R)
• M55: 42,098,337 km (0.102 R)
• M56: 43,391,012 km (0.079 R)
• M57: 43,490,943 km (0.03 R)
• M58: 45,913,382 km (0.084 R)
• M59: 46,423,510 km (0.099 R)
• M60: 46,525,686 km (0.095 R)
• M61: 49,106,399 km (0.116 R)
• M62: 50,046,771 km (0.037 R)
• M63: 50,571,710 km (0.076 R)
• M64: 50,782,194 km (0.063 R)
• M65: 54,945,054 km (0.107 R)
• M66: 55,161,372 km (0.063 R)
• M67: 56,029,938 km (0.063 R)
• M68: 59,993,683 km (0.088 R)
• M69: 60,886,633 km (0.119 R)
• M70: 60,998,681 km (0.087 R)
• M71: 61,896,568 km (0.069 R)
• M72: 62,572,900 km (0.074 R)
• M73: 63,138,529 km (0.119 R)
• M74: 63,365,170 km (0.088 R)
• M75: 65,188,319 km (0.074 R)
• M76: 65,417,354 km (0.112 R)
• M77: 69,119,303 km (0.108 R)
• M78: 69,938,201 km (0.119 R)
• M79: 70,524,924 km (0.094 R)
• M80: 71,231,325 km (0.072 R)
• M81: 72,176,784 km (0.1 R)
• M82: 72,295,265 km (0.094 R)
• M83: 73,483,521 km (0.116 R)
• M84: 74,319,175 km (0.093 R)
• M85: 75,037,993 km (0.091 R)
• M86: 75,398,224 km (0.094 R)
• M87: 76,724,110 km (0.12 R)
• M88: 76,966,010 km (0.069 R)
• M89: 79,398,920 km (0.104 R)
• M90: 79,643,513 km (0.096 R)
• M91: 80,256,266 km (0.092 R)
• M92: 80,379,086 km (0.086 R)
• M93: 80,501,905 km (0.058 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 12,958 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit